Milling-machine.



No. 745,431'. PATIN-Inma. I, 190s.

. LB. FOUTE. MILLING MACHINE.

APPLIUATION FILED 001228,v 1901.

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N`0. 745,431. y PATENTED 1350.1, 19.03'.

J. B. Poma- MILLING MACHINE. APPLIGATIoN FILED 001228, 1901.

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No. 745,431. l PATBNTED'DEC. l, 1903.

- J; B. POOTB.

MILLING MAGHINE.

APPLICATION FILED 0013.28, 1901. H0 MODEL. .9 SHEETS-SHEET 3.

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No. 2:45AM. PATENTE) Dm. 1, 196s.

"J, B. FOUTE. MILLNG MACHINE.

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J. B. POOTE. MLLING MACHINE.

' APPLIATIN FILED 00T. 23, 1901. N0 MODEL.. e .f6 L v9 SHEETS-SHEET 7.

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PATENTBD DEG. l, 1903,

J. B. FUOTE.

MILLING MACHINE.

APPLlcTIoN FILED 0013.28, 1901.

N0 MODEL.

. immun @Humm WIL: ELS 5 E 5- M42/MM c7@ QM@ N0. 7515,431..` PATENTED DEC. l, 1903. J. B. FOUTE.

MILLING MACHINE.

APPLICATION lFILED 00T. 28, i901. l NO MODEL. QSHBETS-SHEET 9.

Y n a ya? Y VWII E EE 5- K IL-V ETHER- .m4 @MW No. 745,43i.

UNITED STATES Fatented December 1,

PATENT OFFICE.

JOHN B. FOOTE, OF OAKPARK, ILLINOIS, ASSIGNOR TO JAMES dr FOOTE,

OF CHICAGO, ILLINOIS,QA FIRM.Vv

MlLLiNc-MACHINE.

SPECIFICATION forming part of Letters Pittem No. 745,431', atea December 1. 1903 Application filed October 28,1301.; Serial No.,80.265. (No model.)

To ali whom, it may concern:

Be it known that I, JOHN B. 'FOoTE,a citizen of the United States of America, and a resident of Oakpark, Cook county,` Illinois, have' inventedl certain new and useful Improve-V ments inMilling-Machines, of which the following is a specification.

. The general object of my invention is to produce a milling machine that while eX- tremely compact is adapted for an unusually wide range of veryaccurate Work and is convenient in use and very readily and quickly adjusted for any ofits dierent functions.

In the accompanying drawings, Figures 1, 2 are respectively a plan view and a side elevation of my machine. Figs. 2, 2b, 2, 2d are detail views of devices hereinafter described. Fig. 3 isa side elevation otl the machine. Fig. a: is a section on the line 44:, Fig.. 5. i Fig. 4 is a detail view of parts on the side opposite that seen in Fig. 3. Figs.`5,`6 are sections on the lines 5 5, 6 6,- Fig. 4. Fig. 6a is a detail plan view of certain feed-,disconnecting devices. Fig. 7 is a section 'en theline 7 7, Fig. 4. Fig. 8 is a section on the line 8 8, Fig. 9. Fig. 9 is a section on ythe line 9 9, Fig. S. Figs. 10, 1i are respectively side and end elevations of a certain tail-stock. Figs. 12, 13, 14 are detail views showing certain slides in plan, section, and end elevation. Figs. 15 and 16 are respectively side, sectional and front viewsof certain rack cutting 'mechan-v ism. y

This machine involves a suitable frame supporting amain spindle-drum in the usual Way, and, like others of its class, it has below the line of its main spindle a verticall 7-adjustable knee Which is arranged to be raised and lowered by hand or by power, and upon this knee a compound table is arranged to be moved bodily back and forth in afront to rear line. A second table member rotates in a horizontal Aplane upon the first and is provided with a Way, transverse With respect to the knee below, for a third horizontally-sliding table member.. Vork supported by this thirdv member may thus receive any desired adjustment of position Withlreferenceto the main spindle and may be'made to travel horizontally at any desired angle-therewith. It

also involves various other devices adapting it for special kinds of'work, and/in these in its general construction and arrangement, as wellas in peculiar devices andcombinations for speciiic objects,"such novelty is'found as will herein after appear. f

Referring now-to the drawings, A represents a suitable frame, and C, Fig. 3, the main spindle, driven by the usual cone-pulleys B. Upon a' suitable vertical Way on the front side of the frameworks a forwardly-project- Ving downwardly-open hollow knee K, which is raised and lowered by the action of a screw J, Working in a nut J1, seated in a hollou7 post 'J2 upon the bed of the frame and having above a shoulder and ball-bearing support J if for a member J 4, rigidly connected with the body of the knee by bolts J 5, Figs. 2 and 4. The screvv is actuated either by hand through a crank and shaft Z, Figs. 3, 6, having a pinion which engages a bevel-gear J 6 on-the upper end of the screw, or from the spindle C through a pulley D, belt D', pulley D2, detachably connected to and rotating a shaft G, bevel-gears, shaft I, Fig. 4, gear J1, gear .T12 or .113, shaft Jn, gearsA J10 J9, shaft JS, and gears J 7 J G. The speed of the shaft G, from which various other mechanisms are actufated, is varied at will Vby devices not herein lclairned nor shown in detail.

The gears connecting the shafts G I are inclosed in a suitable housing H, and one of them is splined upon the shaft I, so that the latter may rise and fall Without affecting the engagement of the gears. This shaft has a bearing above in the member J 4 and rises and falls with it, and to its upper end is fixed the gear J 14. The transverse shaft J11 is mounted in the saine member, and upon it, on opposite sides of the gear J 14, are loosely mounted the gears J 12 J 1S, each adapted to be engaged and disengaged bya clutch JH, splined upon the shaft and moved at Will into-en-l gagement With either or neither gear byv means of a lever J 16, pivoted to the knee at J 20, actuated by rod and handle J 18, and locked by a pin J19, Figs. 2, 3, 4, 5, 6. Thus a slight movement' of the handle arrests the shaft J11 or causes it to rotate in either direction desired, and through the gears J10 J l the IOO motion of this shaft is communicated to the shaft J8, which bears the gear J7, meshing with the gear J upon the screw-shaft J, and also drives other mechanism to be described. The gear J9 just mentioned is rigidly connected with a gear J21 and both are loose upon the shaft J 8, but are caused to engage and disengage it by means of a clutch J22, similar to the clutch J below, operated by an arm J25, mounted on a pin or shaft J24, Fig. G, actuated by a rod J and hand-lever J20, Figs. 4, 5, 6, and locked by a pin workshows them as locking the knee.

ing in an arm J 27and engaging the knee, Fig. 5. It follows that if the shaft J 11 be rotating the screw J is actuated or not, according as the clutch J 22 is in or out of engagement. For accurately locking the knee member J4 or limiting its movement-for example, when it is desired to have the table move between predetermined limits-l fix to the member J 4 a rod L, provided with adjustable stop-collars Ll L2 to engage a rigid projection L3 from the post J2. Fig. 3 shows the collars in position for limiting movement, and Fig. 4L

matically disengage the clutch J22, and thus arrest the moving knee, a slotted bar M, Figs. 45, 6, is fixed to the frame, and in the slot is adjusted a block M', and a sliding pin M3 is mounted in a lug M2 upon the knee in such position that as the knee rises or falls the pin may meet the block M and be thereby forced against the arm J 27, swinging it and releasing the clutch. The upper portion of the knee is adapted to form a way on which a lower member O of the table may slide in a front to rear direction. Such movement is produced by the rotation of the shaft J s, whose pinion J21-engages a gear N upon a shaft N, upon the forward end of which is loosely mounted a gear N2, meshing with a gear N5, upon a parallel threaded shaft N4, rotating without advance in bearings in the knee, Figs. 4, 5, 6. The screw works in a nut N5, fixed to the lower member of the table, and consequently the table is carried along the knee as the screw rotates. The gear N2 is at will made to rotate with theshaft by means of a clutch N0, splined upon the shaft and actuated bya lever N1, connected by a rod Ns to the inner arm of a shortrock-shaft N0, Figs. 3, 6, locked by a pin N10 and bearing without the kneeshell an arm N11 in position to be struck as the table moves back and forth by a block N15, adjustably fixed in a groove N12 in the lower member of the table, and thereby the clutch N0is disengaged automatically, and the movement of the table is arrested at any desired point.

Upon the table member O rests a second horizontally-revoluble member O', which in turns supports an upper sliding member T, upon which work may be secured. The member O' has in its lower side an annular groove O4, adapted to receive the heads of the Ybolts To auto- O, and, above, it is provided with a way to hold and guide the member T. The latter is moved back and forth in this way by the shaft N, as will presently appear.

A gear R is revolubly mounted in the nut N5 and also splined upon the shaft N. It is therefore carried along the shaft by the nut and yet rotates lwith the shaft. It meshes with a gear R', fixed to a shaft R2 passing vertically through the nut and table member O into the member O and bearing upon its upper end a gear R5, in the center of the latter member, meshing with a gear R4, mounted loosely upon a horizontal screw-shaft R5 and rotating in a bearing in the member O', which keeps it permanently engaged with the gear R3. The gear R0 may be made to rotate the screw-shaft by means of a clutch R0, splined upon the shaft and thrown into and out of engagement with the gear by a bar RT lying in a recess in the member O and actuated by a hand-lever R0, pivoted at R10, engaging in a notch R8 in the bar, and locked bya pin R11, engagingin a recess R50, Figs. 4, 7.

The screw-shaft R5 is revolubly ixedat its ends to the member T, and it works in a nut R12, fixed to the member O, and hence when it is rotated the member T is forced to travel along its way in the member O. The table member T has a slot T in its lateral face, and in this slides a block T2, which may be iixed at any point, and in the path followed by this block as the table moves is a sliding pin T0, projecting from the member O immediately over an inclined recess R15 in the lever R0, and the parts are so formed that the depressing of the pin by the block forces the lever to move and ,disengage the clutch R0, thus allowing the member T to come to rest. Obviously the adjustment of the block may cause this automatic disengagement to occur at any desired point. l/Vhen the member T is thus arrested, it may be returned to initial position by means of a hand-wheel T5, Fig. 2, mounted on a stud T5, carried by a block T7, fixed to the table member T. This wheel has on its inner side an internal gear T4, within which lies a gear T0 on the end of the screw-shaft R5 and a pinion T8 upon the stud T5, and that portion of the stud upon which the wheel and pinion are mounted is eccentric to the portion lying in the block T7. The construcl ion is such that when the outer portion of the stud isat its greatest distance from` the screw-shaft the internal gear engages the gear T0 and the pinion Ts is wholly below the latter gear, but when the stud is rotated one hundred and eighty degrees in the block the internal gear is raised out of engagement and the pinion is brought into engagement with the gear T0. Apin T0 locks the stud in either position. The one engagementl gives a quick rotation of the screw, the other a slow one.

In Figs. l, 2 the dividing-head is shown as O5, which adj ustably clamp it to the member i mounted upon the table, and in Figs. S, 9 it IOO is shown in detail. The frame is aV strong base V, secured to the tableV by bolts and provided with parallel vertical standards, between which fits an angularly adjustable spindle-block V', having in its lateral faces T-shaped annular grooves V2 to receive` the heads of bolts V5, which pass through the standards and clamp the block rigidly in any desired angular adjustment, the angle being indicated by a peripheral scale V21. The angular adjustment is on one side about va stud V1, screwed into the block and having a bearing in the corresponding standard,.and on the other side about the end V6 of a shaft V5 in alinement with the stud. A hollow spindle V7 passes centrally through the block and carries in its front end a center V0, a collar V10 serving to compensate for wear, and a screw V56 working against a friction-block V57 to lock it securely in any desired position. Upon the forward end of the spindle is xed a worm-gear V11, which is inclosed by a iiange of the block V and a flanged plate V15, secured thereto by bolts. Below the wormgear is a shaft V15, bearing a worm V50, engaging the worm-gear, and afpinionV15, by

' which the shaft is rotated, the whole being inclosedby recessed blocks V51 V52, secured together by screws V55, forming at the same time a casing and a shaft-bearing. These blocks are supported by bolts V54, passing through slots in a flange V55, projecting from the block -V., and by loosening the bolts, so that they can move in the slots, the worm may be moved out of engagement with `the worm-wheel. The gear V10 is driven from the shaft V5. by a gear V19 and an intermediate gear V17, mounted on a stud V13, projecting from the block V', and the shaft V5 is supported on a bearing V20, lixed in the standard V. Upon the shaft V5 is loosely mounted a gear V20, to which is fixed a dial-plate V20, and upon the outer end of the shaft is secured an arm V21, bearing a pin V22 to engage in any of the apertures on the dial-plate. dial-plate may be locked by means of a bar V25, adjustably fixed to a bracket V29 on the standard V by a thumb-screw V21. This bracket also bears a Vpin V52 for locking a dial-wheel V12, xed upon the projecting rear end of the hollow spindle V5, the pin being adj usted bodily along the slot V33 and locked in any desired adjustment by a screw V51. This bracket further affords a bearing for a shaft V2.3, having at its inner end a gear V27, engaging the gear V20, and at its outer end a gear V31, which is driven when desired from the screw-shaft R5 (Figs. 2, 2d) by means of gears V35 V25 V10, the gears V35 V20 being mounted upon a stud V27, adjustably fixed in an angularly-adjustable bracket V53, proj ecting from the table member T, Figs` 1, 2.

Upon the table member T a tail-stock W, Figs. l, 2, 16, 17, is adjustably secured by bolts. From the bed-plate 1V of the tail-stock rise parallel plates W', between which lits a block W2, in which a center piu W5 is clamped When desired, the Y that in the upper one.

by a screw W4. The pin is adjusted longitudinally by a screw and handfwheel W5, having a circular projection W0 engaging a'notch in the pin. The block V2 is mounted upon a horizontal pivot W2, which hasa threaded endv portion extending vertically downward in a recess in one of the plates W and provided with a nut W7, lying in a horizontal slot in the plate and serving to adjust the block vertically. Bolts V10, passing through slots in the plates VV, clamp the block in any desired position, and the slots are wide enough to permit all .needed angular adjustment of the block on its pivot.

For rack-cutting the main frame carries an adjustable overhanging arm C', whose forward end supports a bearing for a spindleshaft C2, fixed at the end of the spindle C, Figs. 1, 2, 3, 21, 22, and having splined upon it a spiral gear LY 4. The bearing consists of a sleeve Y, seated in the arm C and provided with a flange Y', which is rigidly fixed to the arm by a bolt Y2. To the inner face of the liange a blockY3 is adjustably secured by bolts Y2, whose heads engage in au annular recess Y0 in the block. The block forms a housing for the gear Y1 and holds the latter against movement along its shaft, since a threaded collar Y0 abut-s against the gear. The block also supports a transverse shaft Y5, fixed in a cone-sleeve V11, held in place by lock-nuts V12 and bearing a central spiral gear Y0, engaging the gear Y1, and upon .the projecting end of the shaft Y5 is mounted a detachable cutterY10.

, In order that the parts above the knee may be moved bodily along the same and yet be driven kby devices. within it, the knee is provided with a slot K2, Fig. 4. It is important, however, that this slot should not allow Inaterial to pass into the knee, and superposed slides P P', Figs. 4, 5, 18, 19, 20, are fitted in a way in the knee. Each has a centralslot in which the nut N5 may move, the slot in the lower and longer slide being longer than The nut N5 being at its rear limit of movement, vthe slides have the positions shown in Fig. 4 and close all that portion of the knee-slot not then covered by the table member O. When the table moves forward, the nut reaching the end of the slot in the upper slide carries that slide forward, and thus closes the opposite end 'of the knee-slot. vWhen the nut'reaclies the end `of the slot in the lower slide, both slides are carried forward, but the nut reaches the end of the knee-slot before the-rear ends of the slides reach the rear end of the knee-slot. On the return movement of the table like movements of the slides restore the-1n to ini'- tial position, and thus the slot is always closed, so that nothing can enter the knee.

'It may be observed that any desired change in the feed of the machine may be made almostjinstantly without shifting of belts or ico IIO

disarrangement of any parts; that the somewhat complex mechanisms in the knee may be taken out as a whole by detaching the knee member J4 and removing them through the open ing K' in the lower side of the knee; that the parts within the knee are always protected from dirt and metal cuttings falling from above; that by means of the rotary table member the member above may be made to travel at any angle with the main spindle; that the rotary table member and its bolt-engaging groove are fully circular, the frame of the machine being cut away at AQ Fig. 6, to receive the edge of the table; that the option of using a quick or a slow operation of the screw R5 is important; the dividing head construction allows the use of a large wormwheel and dial-plate, giving accuracy in gearcutting without increasing the size of the head as a whole; that the tail-stock has adjustments adapting it for a great variety of work, and that the rack-cutting devices obviate the necessity of displacing the arm or attaching cumbrous parts, as supports or otherwise.

l. The combination with a frame and a hollow knee arranged to slide vertically thereon, of a table supported lupon the knee, a geardriven screw supporting the knee, a vertical drive-shaft having a bearing in the knee, a shaft extending from Within the knee into the table, a train of gearing, within the knee, connecting said shaft and drive-shaft, a clutch within the knee, for connecting and disconnecting said train and reversing the movement transmitted thereby, a clutch within the knee for connecting and disconnecting the train and the knee-supporting screw, and levers at the front of the knee operatively connected with said clutches, respectively.

2. The combination with a frame, a hollow knee, and a table upon the knee, of a screw for supporting and vertically adjusting the knee, a driving-shaft having a bearing in the knee, a train of gearing transmitting motion from said driving-shaft to the table, a clutch for reversing and arresting the motion imparted by the train, a gear mounted upon the screw, and means for at will connecting said gear with one element of said train, said train, clutch, gear and means all being within the knee, substantially as set forth.

3. In a machine of the class described, the combination with a screw-shaft operatively connected with the table to slide it and provided with a pinion through which it may be driven, a hand-wheel provided with a quick gear and a slow gear, and means whereby either gear may at will be thrown into engagement with said pinion, for the purpose capable of angular adjustment about a central horizontal axis, a dial-plate rotating about said axis, a spindle carried in the di- Viding-head, and means for transmitting rotary motion through said gear and dial-plate to said spindle.

5. The combination with a work-table and a screw-shaft for moving the table horizontally, of a dividing-head mounted upon the table and capable of angular adjustment in a vertical plane, a gear revoluble about the axis of such adjustment, gearing mounted upon the head and transmitting the motion of said gear to the spindle of the dividinghead, and means Wherebysaid gear is rotated by said screw-shaft.

G. The combination with a work-table and a screw-shaft arranged to move the same back and forth, of a dividing-head mounted upon the table and adjustable about a horizontal axis, a dividing-head spindle, a dial-plate and shaft revoluble about said axis, means whereby rotation of the dial-plate shaft .may adjust the spindle, and means whereby the rotation of the screw-shaft maybe transmitted through the dial-plate to the spindle.

7. The combination with a feed-table and actuating devices therefor, of a dividing-head upon the table capable of angular adjustment about a horizontal axis, a spindle carried by the head, a dial-plate shaft serving as a pivotal support for the head, gearing connecting said shaft with said spindle to rotate the latter, a dial-plate mounted upon said shaft, means for rotating the shaft independently of the dial-plate, and means for driving both shaft and dial-plate in unison from the tableactuating devices.

8. The combination with a dividing-head pivoted between rigid supports to rotate upon a horizontal axis, ,of a spindle intersecting said axis, a spindle-locking screw in the line of said axis, a shaft lying in said axis, gearing connecting said shaft with the spindle, means whereby said gearing may be disconnected at will, means whereby said shaft may be rotated by hand or automatically, at will, and a distinct hand-operated dial rigidly fixed to the spindle for adjusting it when said gearing is disconnected.

9. The combination with the tail-stock having the parallel slotted plates, of the center carrying-block between the plates, the clamping-bolts passing through the slots in the` plates and the intervening block, the blockvsupporting pivot having the downwardlyturned, threaded portion lying in a recess in one of the plates, and the nut engaging said portion and held in an aperture in the corresponding plate.

10. The combination with a knee having a slot, to permit the movement of parts connecting devices within the knee with a superposed table, of a slide covering the knee-slot and itself having a shorter7 registering slot,

, and a second slide working alongside'the first and having a still shorter registering slot, the lengths of the slides and slots being such that the knee-slot will be closed or covered in all possible positions of the table.

IIO

1l. The combination with a main spindle and an overhanging arm supporting the same, of a block revoluble upon said spindle, means for locking the bleek to the arm in any position Which it may assume, a transverse cuttershaft mounted in the block at one side of the spindle, and gears carried by the block and transmitting motion from the spindle to the cutter-shaft. l

12. The combination with a table having a slot above, a table upon the knee, and devices moving with the table and extending into the slot, of the superposed slides covering the slot in the knee and having themselves central slots of unequal length in which said devices lie; whereby sueh portions of the knee-slot as are not covered by the moving table are al- 

